Keeping Cool Q&A

Posted by Nene Overland 17/07/2015 0 Comment(s) Featured Products,Service & Maintenance,


Land Rovers challenge to keep cool

Engine overheating has been a major concern for many Land Rover owners over the years. That is now set to change with the introduction of the revolutionary Waterless Engine Coolants range from Evans.
Evans Waterless Engine Coolants represent a major step forward in engine cooling and have blends to suit all types of engine cooling system. The coolants eliminate overheating, boil-over and after-boil. The waterless formula also improves combustion, maximises BHP and prevents corrosion and erosion.


Why does my Land Rover need a waterless coolant?

Ever since the 1930’s, engine coolants have been based on a mixture of Ethylene Glycol, water and corrosion inhibitors. While these work up to a point, there are a number of inherent problems with them that can not only affect the performance and reliability of the engine, but even damage it and reduce its life expectancy.


So what are the problems associated with water based coolants?

Within an engine cooling system, the hottest surfaces are those next to the combustion chamber such as the cylinder liners and cylinder head. In these hot spots, water is likely to vaporise, but as steam, or water vapour, has virtually no heat transfer properties, the metal in these areas over-heats rapidly, producing even more steam and a vicious cycle of over-heating occurs.
This over-heating process and thermal stress can lead to a number of problems such as causing distortion of the cylinder head and liners, engine knock in carburetted engines, reduced combustion efficiency and detonation issues in fuel injected engines, erosion caused by pitting around the liner, cavitation, boil-over when running and after-boil once the engine is turned off.


So how does Evans Waterless Engine Coolant prevent these problems?

Evans coolants have a boiling point in excess of 180 degrees Celsius so they do not boil around these hotspots. The higher boiling point also means they produce 75% less pressure than water resulting in less stress placed on the cooling system components. Evans engineers often demonstrate this characteristic by removing the coolant cap immediately after the car has been used.... and wow, no geyser!


How do Evans coolants affect internal engine corrosion issues?

Water contains dissolved oxygen which corrodes carbon steel and cast iron. It also facilitates electrolytic activity, leading to galvanic corrosion and pitting – a common source of failure in aluminium and copper components. Evans waterless coolants do not contain dissolved oxygen and are non-conductive. Hence, Evans removes the root cause of corrosion whilst improving reliability, reducing maintenance costs and preserving engine life.
Evans Coolants also contain inhibitor formulations that are biased to the metals of construction used in different eras and different applications. Evans’ Power Cool 180 product would be the choice for Land Rover engines primarily fabricated from Aluminium, while Classic Cool 180 would apply to engines that have cast iron blocks.


How robust is Evans Waterless Coolant?

The products are also proven to work in a wide range of operating temperatures. Evans Coolants will not freeze at temperatures as low as -40 degrees celsius, and as previously mentioned its boiling point is an impressive 180 degrees Celsius.
With decades of experience and development, Evans Coolants are the choice of many professional racers. The Honda World Motocross Team used Evans Coolant during performance tests in Europe, and continued their research at Honda’s R&D department in Japan. After finding very positive results Evans was welcomed on board with the team as an official partner for the the 2013 MX1 World Championship.
The impressive technical capabilities and benefits of using Evans Coolants in the harshest of environments were further demonstrated by this year’s all conquering Paris – Dakar Kamaz Master Truck team.


How do I install the coolant?

The existing coolant needs to be fully drained from the cooling system including the heater and all hoses. Unlike Evans, the solution is likely to be toxic so should be disposed of in a proper manner.
Fill the system with Evans Hygroscopic Prep Fluid to remove any dirt, scale and residual coolant. Run the engine until it reaches its normal operating temperature, switch off, allow to cool and then redrain the system.
Fill with the new Evans coolant and run the engine again until it reaches its normal operating temperature once again so that all air is bled from the system.
Check the coolant level again and top up if necessary.


How often should I replace or top up the coolant?

Unlike water and antifreeze mixes, Evans is maintenance free and lasts for the lifetime of the engine as long as it is not contaminated with water. There will be no need for top ups or to add extra coolant additives.
What are the other variations of Evans Waterless Engine Coolant?
Other specially formulated blends of Evans Coolant include  – Vintage Cool 180 (vintage cars), Auto Cool 180 (modern cars), Powersports (track & trail bikes), heavy duty (commercial & industrial vehicles) and Aero Cool 180 (Rotax light aircraft engines).


Where can I find out more?




Developed in the United States in 1995, Evans Waterless Coolants is a range of non-toxic, non-water based coolants designed for automotive, commercial vehicle, motorsport and aerospace engine applications. Designed to last the lifetime of the engine, the revolutionary products eliminate many of the financial and reliability problems associated with water based coolants such as engine corrosion and overheating. Furthermore, Evans coolants helps to deliver greater engine power.

Since its introduction, more than 600,000 engines around the globe have benefitted from its use.
Evans Waterless Engine Coolants – 

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